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Our ServicesOn October 15, 2025, at the Shenzhen Wanxin Exhibition 2025, Changzhou Tonghui Electronics Co., Ltd. officially established a strategic partnership with the National Third Generation Semiconductor Technology Innovation Center (Shenzhen) ..
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About UsChangzhou Tonghui Electronics Co., Ltd. was founded in 1994. It is a national high-tech enterprise and a national specialized and innovative small giant enterprise that integrates research and development, manufacturing, and marketing.
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Safety compliance wire testing equipment
Conventional Withstand Voltage Insulation Tester
Universal Type
-
■ Output: AC：5kV/30mA；DC：6kV/10mA
■ Insulation resistance test voltage: 0.05-1kV
■ Resistance test range: 0.1MΩ-50GΩ
■ TH9201S: 8-channel scanning AC/DC/IR
■ 240×64 Dot-matrix graphic LCD display
■ Fast discharge and arc detection function
■ Body protection function
■ Built-in 8-channel matrix scanner for convenient use
■ Set voltage rising time, test time, and voltage dropping time
randomly for different load, DC withstanding voltage current
judging & waiting time
■ 100 test steps being stored per group, totally 50 groups, and
the total testing steps are limited at 500
■ Current base number correction function
■ Brand new operation interface and humanized panel design
■ Abundant interfaces Handler, RS-232C, SCAN,
GPIB(optional)
-
■ Output: AC：5kV/30mA；DC：6kV/10mA
■ Insulation resistance test voltage: 0.05-1kV
■ Resistance test range: 0.1MΩ-50GΩ
■ TH9201: AC/DC/IR
■ 240×64 Dot-matrix graphic LCD display
■ Fast discharge and arc detection function
■ Body protection function
■ Set voltage rising time, test time, and voltage dropping time
randomly for different load, DC withstanding voltage current
judging & waiting time
■ 100 test steps being stored per group, totally 50 groups, and
the total testing steps are limited at 500
■ Current base number correction function
■ Brand new operation interface and humanized panel design
■ Abundant interfaces Handler, RS-232C, SCAN,
GPIB(optional)
-
■ Output: AC：5kV/30mA；DC：6kV/10mA
■ Insulation resistance test voltage: 0.05-1kV
■ Resistance test range: 0.1MΩ-50GΩ
■ TH9201B: AC/DC/IR
■ 240×64 Dot-matrix graphic LCD display
■ Fast discharge and arc detection function
■ Body protection function
■ Set voltage rising time, test time, and voltage dropping time
randomly for different load, DC withstanding voltage current
judging & waiting time
■ 100 test steps being stored per group, totally 50 groups, and
the total testing steps are limited at 500
■ Current base number correction function
■ Brand new operation interface and humanized panel design
■ Abundant interfaces Handler, RS-232C, SCAN,
GPIB(optional)
-
■ Output voltage: AC:5kV/20mA; DC:6kV/10mA
■ Test voltage of IR: 0.10kV-1.00kV
■ Test range of IR: 1MΩ-1000MΩ
■ Provide 4 channels (-S4), 8 channels (-S8) scan interface
■ Contact check function
■ 480×272 dot-matrix, TFT-LCD display
■ Rapidly discharging and arc detection
■ Randomly set voltage rising time and testing time in 999.9
seconds
■ Freely set waiting time for insulation resistance
■ Hold 20 testing steps, 4 testing modes selectable
■ Brand new operation interface and concise interface
operation design
■ Lock keyboard
Basic Model
-
■ Simple operability
■ 6 test items or combinations, 9 test storage areas
■ Contact check function (TH9302C, TH9302D)
■ RS-232C interface as standard
■ Relay input/output, HANDLER interface, support PLC
■ External control interface, support synchronous or remote control
■ Voltage rise time: 0.1s-999.9s
■ Test waiting time: 0.1s-999.9s
-
■ Simple operability
■ 6 test items or combinations, 9 test storage areas
■ Contact check function (TH9302C, TH9302D)
■ RS-232C interface as standard
■ Relay input/output, HANDLER interface, support PLC
■ External control interface, support synchronous or remote control
■ Voltage rise time: 0.1s-999.9s
■ Test waiting time: 0.1s-999.9s
-
■ Simple operability
■ 6 test items or combinations, 9 test storage areas
■ Contact check function (TH9302C, TH9302D)
■ RS-232C interface as standard
■ Relay input/output, HANDLER interface, support PLC
■ External control interface, support synchronous or remote control
■ Voltage rise time: 0.1s-999.9s
■ Test waiting time: 0.1s-999.9s
-
■ Simple operability
■ 6 test items or combinations, 9 test storage areas
■ Contact check function (TH9302C, TH9302D)
■ RS-232C interface as standard
■ Relay input/output, HANDLER interface, support PLC
■ External control interface, support synchronous or remote control
■ Voltage rise time: 0.1s-999.9s
■ Test waiting time: 0.1s-999.9s
